html body{
    height: 100%;width: 100%;
}
.depth{
    width: 1120px;
    height: 100%;
    margin: 0 auto;
}
/* header*/
header{
    height: 80px;
}
.header_box{
    display: flex;
    justify-content: space-between;
}
.nav{
    display: flex;
}
.nav p{
    width: 120px;
    line-height: 77px;
    font-size: 20px;
    font-family: "宋体";
    color: #866961;
    display: flex;
    justify-content: center;
    user-select: none;
}
.nav .active{
    border-bottom: 3px solid #866961;
    color: red;
}
/* banner */
.banner img{
    height:100%;
    width: 100%;
}
/* section_head*/
.section_head{
    height: 165px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}
.section_head h1{
    font-size: 24px;
    color: #333;
}
.section_head p:nth-of-type(1){
    color: #666;
    display: flex;
    align-items: center;
    font-size: 14px;
}
.section_head p:nth-of-type(1) img{
    margin: 14px 8px;
}
/* 底部 */
footer{
    height: 80px;
    background: #866961;
}
footer .depth{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer_left{
    padding-left: 25px;
}
.banner_child{
    height: 400px;
    width: 100%;
    font-size: 0;
}
.banner_child img{
    height: 400px;
    width: 100%;
    position: absolute;
}
.banner_child ul{
    position: absolute;
    top:430px;
    left: 750px;
    z-index: 2;
}
.banner_child li{
    height: 10px;
    width: 10px;
    background: #fff;
    border-radius: 50%;
    display: inline-block;
    margin-left: 10px;
}
.banner_child .lit{
    background: orangered;
}
.light{
    z-index: 1;
}


